The genus Coleus (Lamiaceae) in Central Africa (Democratic Republic of the Congo, Rwanda, Burundi), with the description of 15 new species Author Meerts, Pierre J. 0000-0003-4215-027X Meise Botanic Garden, Nieuwelaan 38, BE- 1860 Meise, Belgium & Université Libre de Bruxelles, Av. F. D. Roosevelt 50 CP 244, BE- 1050 Brussels, Belgium & Fédération Wallonie-Bruxelles, Service général de l’Enseignement supérieur et de la Recherche scientifique, Brussels, Belgium Author Paton, Alan J. 0000-0002-6052-6675 The Herbarium, Royal Botanic Gardens, Kew, Richmond TW 9 3 AB, UK text PhytoKeys 2024 2024-09-02 246 71 178 journal article 302074 10.3897/phytokeys.246.129476 b381880a-e0bb-4b02-ad0f-2f90a0b6c995 Coleus prittwitzii (Perkins) A. J. Paton , Phytokeys 129: 86. 2019 . Pycnostachys prittwitzii Perkins , Notizbl. Bot. Gart. Berlin-Dahlem 8: 68. 1921. Type: Tanzania , Iringa District , Ndembera flood plain, near Gominyi, 2 Aug 1901 , G . von Prittwitz 28 ( holotype B destroyed; isotype K [ K 000405965 ] fragment). Description. Paton et al. (2009: 398) , Paton et al. (2013: 324) , as Pycnostachys prittwitzii Perkins. Distribution. SW Tanzania to N Zambia . Habitat and ecology. Savannah on moist soil; ca. 1200 m elev. Additional specimens. Burundi , Mutara, Mosso, 12 Aug 1952 , G . Michel 3686 ( BR , K ); Kiofi, Mosso, 16 Sep 1952 , G . Michel 3907 ( BR ). Note. The two cited specimens differ from other materials of C. prittwitzii in having opposite (not ternate), broader, leaves and shorter inflorescence; they could represent a different taxon.